SGDH-01AE  消谐器  用于限制铁磁谐振过电压 

Yaskawa SGDH-01AESigma 迷你交流伺服放大器

SGDH-01AE

24 V 直流输入

3 W （4.02hp） 额定容量

位置控制

SGDH-01AE是安川伺服驱动器的型号，其产品介绍为：SGDH-01AE型3～10KV电压互感器中性点用非线性电阻消谐阻尼器（简称消谐器），是安装在3～10KV电压互感器一次绕组Y结线中性点与地之间的一种非线性电阻消谐阻尼器件。

SGDH-01AE该型号的消谐器主要用于限制铁磁谐振过电压，从而保护电压互感器一次绕组中性点与地之间的绝缘。该消谐器具有非线性电阻元件和限流电阻元件组成，能够有效地吸收电网中的谐波电流，防止谐振过电压的产生。

需要注意的是，不同型号的消谐器可能具有不同的性能特点和应用范围，因此在使用时需要结合具体情况进行选择。

消谐器有以下几种：

电抗式消谐器：通过串联电抗元件来提高电路的谐振频率，实现谐振频率与工频分离，从而消除谐波。

电容式消谐器：SGDH-01AE通过并联电容元件来形成一个谐振回路，使谐振频率与工频相分离，从而消除谐波。

无功功率自动补偿式消谐器：不仅能够消除谐波，还能够对电网进行无功功率的调节，提高电网的功率因数。

谐振型消谐器：SGDH-01AE利用谐振电路的共振特性，通过改变电路的谐振频率，使得谐波电流得到消除。

安川伺服驱动器具有体积小、速度快、操作简单等方面的优点，被广泛应用于工业自动化、机器人、机械制造等领域。

其控制方式经历了以下四代：

单、成本较低、机械特性硬度也较好，能够满足一般传动的平滑调速要求，已在产业的各个领域得到广泛应用。

矢量控制（VC）控制方式。其特点是能进行精确的速度控制，调速范围宽、动态响应快、抗过载能力强。

SGDH-01AE直接转矩控制（DTC）控制方式。其特点是控制简单、直观、易实现，并且在理论上具有等同于直流电机的动态性能极限。

矩阵式变换控制方式

伺服放大器是用来控制伺服电机的一种控制器，其作用类似于变频器作用于普通交流马达，属于伺服系统的一部分，主要应用于高精度的定位系统。一般是通过位置、速度和力矩三种方式对伺服电机进行控制，实现高精度的传动系统定位，是传动技术的高端产品。

SGDH-01AE伺服放大器具备防液能力，但不能完全防液且防腐蚀，所以需要做好电机的防护措施。

SGDH-01AE  消谐器  用于限制铁磁谐振过电压 

Yaskawa SGDH-01AESigma Mini AC servo amplifier

SGDH-01AE

24 V DC input

3 W (4.02hp) rated capacity

Position control

SGDH-01AE is the model of Yaskawa servo driver, and its product introduction is: SGDH-01AE type 3 ~ 10KV voltage transformer neutral point with nonlinear resistance damping (referred to as damping), is installed in 3 ~ 10KV voltage transformer primary winding Y junction line between the neutral point and the ground a nonlinear resistance damping device.

SGDH-01AE This type of eliminator is mainly used to limit the ferroresonance overvoltage, thereby protecting the insulation between the neutral point of the primary winding of the voltage transformer and the ground. The harmonic eliminator is composed of a nonlinear resistance element and a current limiting resistance element, which can effectively absorb harmonic current in the power grid and prevent the generation of resonant overvoltage.

It should be noted that different models of harmonic eliminators may have different performance characteristics and application ranges, so it is necessary to choose according to the specific situation when using.

There are the following kinds of harmonic eliminator:

Reactance eliminator: Through series reactance components to improve the resonant frequency of the circuit, to achieve resonance frequency and power frequency separation, so as to eliminate harmonics.

Capacitive damper: The SGDH-01AE eliminates harmonics by shunt capacitor elements in parallel to form a resonant loop that separates the resonant frequency from the power frequency phase.

Automatic reactive power compensation type harmonic eliminator: not only can eliminate harmonics, but also can adjust the reactive power of the power grid to improve the power factor of the power grid.

Resonant eliminator: SGDH-01AE uses the resonance characteristics of the resonant circuit to eliminate the harmonic current by changing the resonant frequency of the circuit.

Yaskawa servo drive has the advantages of small size, fast speed, simple operation, etc., and is widely used in industrial automation, robot, machinery manufacturing and other fields.

Its control mode has experienced the following four generations:

Single, low cost, mechanical characteristics hardness is also good, can meet the general transmission smooth speed requirements, has been widely used in various fields of the industry.

Vector control (VC) control mode. It is characterized by accurate speed control, wide speed range, fast dynamic response and strong anti-overload ability.

SGDH-01AE Direct Torque Control (DTC) control mode. It is characterized by simple control, intuitive, easy to implement, and theoretically has the same dynamic performance limit as DC motor.

Matrix transform control mode

Servo amplifier is a controller used to control the servo motor, its role is similar to the frequency converter acting on the ordinary AC motor, is a part of the servo system, mainly used in high-precision positioning system. Generally, the servo motor is controlled through three ways of position, speed and torque to achieve high-precision transmission system positioning, which is a high-end product of transmission technology.

The SGDH-01AE servo amplifier has the capability of liquid resistance, but it cannot be completely liquid resistance and corrosion resistance, so it is necessary to take good protection measures for the motor.